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<div class="titlepage"><div><div><h3 class="title">
<a name="asio.reference.ip__address_v4"></a><a class="link" href="ip__address_v4.html" title="ip::address_v4">ip::address_v4</a>
</h3></div></div></div>
<p>
        Implements IP version 4 style addresses.
      </p>
<pre class="programlisting">class address_v4
</pre>
<h5>
<a name="asio.reference.ip__address_v4.h0"></a>
        <span><a name="asio.reference.ip__address_v4.types"></a></span><a class="link" href="ip__address_v4.html#asio.reference.ip__address_v4.types">Types</a>
      </h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                <p>
                  Name
                </p>
              </th>
<th>
                <p>
                  Description
                </p>
              </th>
</tr></thead>
<tbody>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/bytes_type.html" title="ip::address_v4::bytes_type"><span class="bold"><strong>bytes_type</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  The type used to represent an address as an array of bytes.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/uint_type.html" title="ip::address_v4::uint_type"><span class="bold"><strong>uint_type</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  The type used to represent an address as an unsigned integer.
                </p>
              </td>
</tr>
</tbody>
</table></div>
<h5>
<a name="asio.reference.ip__address_v4.h1"></a>
        <span><a name="asio.reference.ip__address_v4.member_functions"></a></span><a class="link" href="ip__address_v4.html#asio.reference.ip__address_v4.member_functions">Member
        Functions</a>
      </h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                <p>
                  Name
                </p>
              </th>
<th>
                <p>
                  Description
                </p>
              </th>
</tr></thead>
<tbody>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/address_v4.html" title="ip::address_v4::address_v4"><span class="bold"><strong>address_v4</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Default constructor. <br> <span class="silver"> &#8212;</span><br> Construct an address from raw
                  bytes. <br> <span class="silver"> &#8212;</span><br> Construct an address from an unsigned integer
                  in host byte order. <br> <span class="silver"> &#8212;</span><br> Copy constructor.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/any.html" title="ip::address_v4::any"><span class="bold"><strong>any</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Obtain an address object that represents any address.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/broadcast.html" title="ip::address_v4::broadcast"><span class="bold"><strong>broadcast</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Obtain an address object that represents the broadcast address.
                  <br> <span class="silver"> &#8212;</span><br> (Deprecated: Use network_v4 class.) Obtain an address
                  object that represents the broadcast address that corresponds to
                  the specified address and netmask.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/from_string.html" title="ip::address_v4::from_string"><span class="bold"><strong>from_string</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  (Deprecated: Use make_address_v4().) Create an address from an
                  IP address string in dotted decimal form.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/is_class_a.html" title="ip::address_v4::is_class_a"><span class="bold"><strong>is_class_a</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  (Deprecated: Use network_v4 class.) Determine whether the address
                  is a class A address.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/is_class_b.html" title="ip::address_v4::is_class_b"><span class="bold"><strong>is_class_b</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  (Deprecated: Use network_v4 class.) Determine whether the address
                  is a class B address.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/is_class_c.html" title="ip::address_v4::is_class_c"><span class="bold"><strong>is_class_c</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  (Deprecated: Use network_v4 class.) Determine whether the address
                  is a class C address.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/is_loopback.html" title="ip::address_v4::is_loopback"><span class="bold"><strong>is_loopback</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Determine whether the address is a loopback address.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/is_multicast.html" title="ip::address_v4::is_multicast"><span class="bold"><strong>is_multicast</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Determine whether the address is a multicast address.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/is_unspecified.html" title="ip::address_v4::is_unspecified"><span class="bold"><strong>is_unspecified</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Determine whether the address is unspecified.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/loopback.html" title="ip::address_v4::loopback"><span class="bold"><strong>loopback</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Obtain an address object that represents the loopback address.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/netmask.html" title="ip::address_v4::netmask"><span class="bold"><strong>netmask</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  (Deprecated: Use network_v4 class.) Obtain the netmask that corresponds
                  to the address, based on its address class.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/operator_eq_.html" title="ip::address_v4::operator="><span class="bold"><strong>operator=</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Assign from another address.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/to_bytes.html" title="ip::address_v4::to_bytes"><span class="bold"><strong>to_bytes</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Get the address in bytes, in network byte order.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/to_string.html" title="ip::address_v4::to_string"><span class="bold"><strong>to_string</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Get the address as a string in dotted decimal format. <br> <span class="silver"> &#8212;</span><br>
                  (Deprecated: Use other overload.) Get the address as a string in
                  dotted decimal format.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/to_uint.html" title="ip::address_v4::to_uint"><span class="bold"><strong>to_uint</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Get the address as an unsigned integer in host byte order.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/to_ulong.html" title="ip::address_v4::to_ulong"><span class="bold"><strong>to_ulong</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Get the address as an unsigned long in host byte order.
                </p>
              </td>
</tr>
</tbody>
</table></div>
<h5>
<a name="asio.reference.ip__address_v4.h2"></a>
        <span><a name="asio.reference.ip__address_v4.friends"></a></span><a class="link" href="ip__address_v4.html#asio.reference.ip__address_v4.friends">Friends</a>
      </h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                <p>
                  Name
                </p>
              </th>
<th>
                <p>
                  Description
                </p>
              </th>
</tr></thead>
<tbody>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/operator_not__eq_.html" title="ip::address_v4::operator!="><span class="bold"><strong>operator!=</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Compare two addresses for inequality.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/operator_lt_.html" title="ip::address_v4::operator&lt;"><span class="bold"><strong>operator&lt;</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Compare addresses for ordering.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/operator_lt__eq_.html" title="ip::address_v4::operator&lt;="><span class="bold"><strong>operator&lt;=</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Compare addresses for ordering.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/operator_eq__eq_.html" title="ip::address_v4::operator=="><span class="bold"><strong>operator==</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Compare two addresses for equality.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/operator_gt_.html" title="ip::address_v4::operator&gt;"><span class="bold"><strong>operator&gt;</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Compare addresses for ordering.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/operator_gt__eq_.html" title="ip::address_v4::operator&gt;="><span class="bold"><strong>operator&gt;=</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Compare addresses for ordering.
                </p>
              </td>
</tr>
</tbody>
</table></div>
<h5>
<a name="asio.reference.ip__address_v4.h3"></a>
        <span><a name="asio.reference.ip__address_v4.related_functions"></a></span><a class="link" href="ip__address_v4.html#asio.reference.ip__address_v4.related_functions">Related
        Functions</a>
      </h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                <p>
                  Name
                </p>
              </th>
<th>
                <p>
                  Description
                </p>
              </th>
</tr></thead>
<tbody>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/make_address_v4.html" title="ip::address_v4::make_address_v4"><span class="bold"><strong>make_address_v4</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Create an IPv4 address from raw bytes in network order.
                </p>
                <p>
                  Create an IPv4 address from an unsigned integer in host byte order.
                </p>
                <p>
                  Create an IPv4 address from an IP address string in dotted decimal
                  form.
                </p>
                <p>
                  Create an IPv4 address from a IPv4-mapped IPv6 address.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/make_network_v4.html" title="ip::address_v4::make_network_v4"><span class="bold"><strong>make_network_v4</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Create an IPv4 network from an address and prefix length.
                </p>
                <p>
                  Create an IPv4 network from an address and netmask.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="ip__address_v4/operator_lt__lt_.html" title="ip::address_v4::operator&lt;&lt;"><span class="bold"><strong>operator&lt;&lt;</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Output an address as a string.
                </p>
                <p>
                  Output a network as a string.
                </p>
              </td>
</tr>
</tbody>
</table></div>
<p>
        The <a class="link" href="ip__address_v4.html" title="ip::address_v4"><code class="computeroutput">ip::address_v4</code></a>
        class provides the ability to use and manipulate IP version 4 addresses.
      </p>
<h5>
<a name="asio.reference.ip__address_v4.h4"></a>
        <span><a name="asio.reference.ip__address_v4.thread_safety"></a></span><a class="link" href="ip__address_v4.html#asio.reference.ip__address_v4.thread_safety">Thread
        Safety</a>
      </h5>
<p>
        <span class="emphasis"><em>Distinct</em></span> <span class="emphasis"><em>objects:</em></span> Safe.
      </p>
<p>
        <span class="emphasis"><em>Shared</em></span> <span class="emphasis"><em>objects:</em></span> Unsafe.
      </p>
<h5>
<a name="asio.reference.ip__address_v4.h5"></a>
        <span><a name="asio.reference.ip__address_v4.requirements"></a></span><a class="link" href="ip__address_v4.html#asio.reference.ip__address_v4.requirements">Requirements</a>
      </h5>
<p>
        <span class="emphasis"><em>Header: </em></span><code class="literal">asio/ip/address_v4.hpp</code>
      </p>
<p>
        <span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
      </p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 2003-2018 Christopher M. Kohlhoff<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
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